The letter was written by E. C. J. Bond who was the officer in-charge No. 18 party (Magnetic), Survey of India to the Director of the Madras and Kodaiknal Observatories, Kodaikanal through the Superintendent of the Trignometrical Survey. Through this document, the author was inquiring how the tabulated data in the original and duplicate magnetic forms taken from Kodaikanal and delivered to the Survey of India office differed. Also provided are a few instructions for the observers. Letter was sent from Mussoorie in 1920.

Letter from E. C. J. Bond to the Director of Kodaikanal Observatory about recording the magnetic observations

This letter is from Dy. Director General of Stores informing about a grating for Kodaikanal Observatory which had been supplied and tested

This is a letter from Dr. Gilbert T. Walker to Charles Michie Smith informing that the indent has gone in complete except that in the case of the low power microscope, which is received already.

The letter is from the Director-General of Observatories to John Evershed, Director of Kodaikanal and Madras Observatories, regarding Messrs Adam Hilger's second bill dated March 1, 1914, for the repairing of photo micrometer belonging to the Kodaikanal Observatory. It is stated that a bill of exchange has paid the amount.

The letter is from the Director, Kodaikanal & Madras Observatories to the Executive Engineer, Madura, mentioning Mr R. Savarinathan, about making a watertight roof and also not signing the estimate as it does not provide for working without interfering in the use of instruments.

This letter is from the Director of the Meteorological Reporter to the Government regarding the examination of the dividing engine and careful testing on object glass of the Microscope.

The letter is from the Director of Kodaikanal Observatory to Messrs William Wesley and son asking to supply annually the Almanac of the British Journal of Photography.

This is a letter from the Director of Kodaikanal and Madras Observatories to the Meteorological Reporter to the Government of India and the Director General of Indian Observatories regarding the new standard signalling time arrangement. The Government of Madras has also accepted the standard time for local signals.

This letter is from the Director General of Stores to the India Office regarding imperial lantern plates, which were recommended tissue paper for packing as it is liable to scratch the film matter, such as moisture, which may attack and destroy the film.